I've been playing Last Chaos for the past few weeks and surprisingly I haven't seen many people who play it on d2jsp.
the game is completely free and have updates several times a month, along with many events and surprises in the game.
some details of this great game are:
-players can open up their own shops at any time in town and can sell items just like the merchants while AFK.
-there are no attribute requirements for wearing gear, only level requirements. you can wear gear 5 levels within your level, but with pros and cons.
-there are many random special monsters that spawn called "pandora boxes/beasts" that give 10x the exp and loot.
-personal dungeons for great experience and loot.
-pet dragons and horses that you can mount and ride around to anywhere once they are leveled up.
-guilds that have their own guild hall that you can teleport to any time to chat with fellow guild members.
and the best thing about all of this is that its all free. there is a shop where you can buy seasonal event items if you cant wait, but otherwise there is no use for money.
I'm looking for some people who would like to start playing this with me and a few friends or that already play and can put in their two cents about this game.
the official site is:
http://lastchaos.aeriagames.com/front_pageit has very nice graphics too compared to other free games online. I just quit diablo 2 after 6 years and this game has impressed me so far.
I'm sure you can get on youtube.com and find a lot of trailers and other videos about this game too.

cheers.